HUNTSVILLE — One if by land … and by sea.
That’s not quite how the phrase goes, but a land-based defense system developed by a Huntsville company has found success on the high seas.
This month, Invariant’s Surface-to-Air Kinetic Engagement (STAKE) system was fully integrated onto a Navy vessel and intercepted unmanned aerial system targets, the company announced.

“This successful demonstration represents a significant development and reflects Invariant’s position at the forefront of C-UAS innovation,” said President Danny Levis. “With deep roots in software engineering and a proven track record as system integrators, we are committed to advancing adaptable, high-performance systems that redefine what’s possible in today’s engagement technologies.”
The integration highlighted how legacy munitions can be adapted for emerging threats and reinforces Invariant’s reputation in advancing maritime and layered C-UAS innovation.
Calling it a groundbreaking step forward in using the Advanced Precision Kill Weapon System at sea, Invariant said the demonstration highlights the STAKE system’s versatility and performance in highly dynamic, complex environments.
With this milestone, STAKE reinforces Invariant’s leadership in C-UAS innovation and further demonstrates the company’s commitment to delivering advanced capabilities that are field-ready, operator-driven, and mission-focused.
For more information about Invariant, visit www.invariant-corp.com.
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